AEMC instruments Digital FlexProbes 400D-10 User manual

WITH AEMC
®
INSTRUMENTS
DIGITAL FLEXPROBE®
Digital FlexProbes®
ENGLISH
User Manual
Models: 400D-10
400D-14
400D-24
4000D-14
4000D-24

Copyright©Chauvin Arnoux®, Inc. d.b.a. AEMC®Instruments. All rights reserved.
No part of this documentation may be reproduced in any form or by any means (including electronic
storage and retrieval or translation into any other language) without prior agreement and written consent
from Chauvin Arnoux®, Inc., as governed by United States and International copyright laws.
Chauvin Arnoux®, Inc. d.b.a. AEMC®Instruments
15 Faraday Drive • Dover, NH 03820 USA
Tel: [phone] or [phone] • Fax: [phone]
This documentation is provided “as is,” without warranty of any kind, express, implied, or otherwise.
Chauvin Arnoux®, Inc. has made every reasonable e󰀨ort to ensure that this documentation is accurate;
but does not warrant the accuracy or completeness of the text, graphics, or other information contained
in this documentation. Chauvin Arnoux®, Inc. shall not be liable for any damages, special, indirect,
incidental, or inconsequential; including (but not limited to) physical, emotional or monetary damages
due to lost revenues or lost prots that may result from the use of this documentation, whether or not the
user of the documentation has been advised of the possibility of such damages.

Chauvin Arnoux®, Inc.
d.b.a AEMC®Instruments
www.aemc.com
Statement of Compliance
Chauvin Arnoux®, Inc. d.b.a. AEMC® Instruments
certies that this instrument has been calibrated
using standards and instruments traceable to
international standards.
We guarantee that at the time of shipping your
instrument has met the instrument’s published
specications.
An NIST traceable certicate may be requested
at the time of purchase, or obtained by returning
the instrument to our repair and calibration
facility, for a nominal charge.
The recommended calibration interval for this
instrument is 12 months and begins on the date of
receipt by the customer. For recalibration, please
use our calibration services. Refer to our repair and
calibration section at www.aemc.com/calibration.
Serial #:
Catalog #:
Model #:
Please ll in the appropriate date as indicated:
Date Received:
Date Calibration Due:

TABLE OF CONTENTS
1. INTRODUCTION..................................................................6
1.1 PRECAUTIONS BEFORE USE................................................. 6
1.2 INTERNATIONAL ELECTRICAL SYMBOLS........................... 6
1.3 DEFINITION OF MEASUREMENT CATEGORIES (CAT) ...... 7
1.4 RECEIVING YOUR SHIPMENT................................................ 7
1.5 ORDERING INFORMATION..................................................... 7
1.5.1 Accessories ........................................................................ 7
2. PRODUCT FEATURES.......................................................8
2.1 DESCRIPTION ........................................................................... 8
2.2 CONTROL FEATURES ............................................................. 9
3. OPERATION ...................................................................... 11
3.1 MEASUREMENT PRINCIPLE ................................................ 11
3.2 USE ........................................................................................... 11
3.2.1 Connection ....................................................................... 11
3.2.2 Measurement ................................................................... 11
3.2.3 Freezing the Measurement .............................................. 12
3.2.4 Search for Maximum ....................................................... 12
3.2.5 Auto Power OFF............................................................... 12
3.2.6 Low Battery ...................................................................... 13
3.2.7 Disconnecting................................................................... 13
4. SPECIFICATIONS ............................................................. 14
4.1 REFERENCE CONDITIONS................................................... 14
4.2 ELECTRICAL............................................................................ 14
4.2.1 Model 400D-10 / 400D-24 ................................................ 14
4.2.2 Model 4000D-14 / 4000D-24 ........................................... 14
4.3 VARIATIONS IN RANGE OF USE ......................................... 15
4.4 TYPICAL FREQUENCY RESPONSE CURVES ................... 16
4.5 POWER SUPPLY ..................................................................... 16
4.6 ENVIRONMENTAL .................................................................. 16
4.7 MECHANICAL .......................................................................... 17
4.8 SAFETY .................................................................................... 17
4.9 ELECTROMAGNETIC COMPATIBILITY ............................... 17

5. MAINTENANCE ................................................................ 18
5.1 CLEANING................................................................................ 18
5.2 REPLACING THE BATTERIES .............................................. 18
5.3 REPAIR AND CALIBRATION ................................................. 19
5.4 TECHNICAL AND SALES ASSISTANCE .............................. 19
5.5 LIMITED WARRANTY............................................................. 20
5.5.1 Warranty Repairs.............................................................. 20

6 Digital FlexProbe®Models 400D & 4000D - User Manual
1. INTRODUCTION
Thank you for purchasing an AEMC®Instruments Digital FlexProbe®.
For the best results from your instrument and for your safety, you must read the
enclosed operating instructions carefully and comply with the precautions for use.
Only qualied and trained operators should use this product.
1.1 PRECAUTIONS BEFORE USE
This instrument is protected against voltages of not more than 1000 V with
respect to ground in measurement CAT III or 600 V in CAT IV between the
sensor and the conductor that measures the current.
The protection provided by the instrument may be impaired if the instrument is
used other than as specied by the manufacturer.
■Comply with the rated maximum voltage and current, and the
measurement category.
■Observe the conditions of use; temperature, relative humidity, altitude,
level of pollution, and location.
■Before each use, check the integrity of the insulation on the sensor,
cable and housing. Do not use the instrument if it is open, damaged,
poorly assembled, or if its accessories appear damaged.
■The sensor must not be applied to or removed from uninsulated
conductors at dangerous voltages.
■Use personal protection equipment systematically.
■All troubleshooting and metrological checks must be performed by
competent and accredited personnel.
1.2 INTERNATIONAL ELECTRICAL SYMBOLS
Signies that the instrument is protected by double or reinforced insulation
CAUTION - Risk of Danger! Indicates a WARNING. Whenever this symbol
is present, the operator must refer to the user manual before operation
Indicates a risk of electric shock. The voltage at the parts marked with this
symbol may be dangerous
Indicates Important information to acknowledge
This product complies with the Low Voltage & Electromagnetic Compatibility
European directives
Battery
In the European Union, this product is subject to a separate collection
system for recycling electrical and electronic components in accordance with
directive WEEE 2012/19/EU

Digital FlexProbe®Models 400D & 4000D - User Manual 7
1.3 DEFINITION OF MEASUREMENT CATEGORIES (CAT)
CAT IV: Corresponds to measurements performed at the primary electrical
supply (< 1000 V).
Example: primary overcurrent protection devices, ripple control units,
and meters.
CAT III: Corresponds to measurements performed in the building installation
at the distribution level.
Example: hardwired equipment in xed installation and circuit
breakers.
CAT II: Corresponds to measurements performed on circuits directly
connected to the electrical distribution system.
Example: measurements on household appliances and portable
tools.
1.4 RECEIVING YOUR SHIPMENT
Upon receiving your shipment, make sure that the contents are consistent with
the packing list. Notify your distributor of any missing items. If the equipment
appears to be damaged, le a claim immediately with the carrier and notify
your distributor at once, giving a detailed description of any damage. Save the
damaged packing container to substantiate your claim.
1.5 ORDERING INFORMATION
All models include one Digital FlexProbe®, (2) AAA batteries and a user manual.
Digital FlexProbe®(MiniFlex®) Model 400D-10 w/ 6 ft Lead
(TRMS, 4 AAC, 40 AAC, 400 AAC)...................................................... Cat. #2153.31
Digital FlexProbe®(MiniFlex®) Model 400D-24 w/ 6 ft Lead
(TRMS, 4 AAC, 40 AAC, 400 AAC)......................................................Cat. #2153.36
Digital FlexProbe®(MiniFlex®) Model 4000D-14 w/ 6 ft Lead
(TRMS, 40 AAC, 400 AAC, 4000 AAC)................................................Cat. #2153.32
Digital FlexProbe®(MiniFlex®) Model 4000D-24 w/ 6 ft Lead
(TRMS, 40 AAC, 400 AAC, 4000 AAC)................................................Cat. #2153.35
1.5.1 Accessories
Multix Multi-Position Magnetic Mounting Accessory .....................Cat. #5000.44
Soft Carrying Case........................................................................... Cat. #2118.65
Small Classic Tool Bag .................................................................... Cat. #2133.72
Order Accessories and Replacement Parts Directly Online
Check our Storefront at www.aemc.com/store for availability

8 Digital FlexProbe®Models 400D & 4000D - User Manual
2. PRODUCT FEATURES
2.1 DESCRIPTION
An ideal addition to the electrician’s tool kit, the Digital FlexProbe®series can be
used for TRMS AC current measurements from 20 mA to 4000 A, and are rated
600 V CAT IV. They provide a welcomed solution when accessing electrical
conductors is di󰀩cult and in tight places.
Two models are available. The Model 400D, available with a 10 in, or 24 in
sensor, has a measurement range starting at 20 mA, and is designed for work in
residential, commercial and light industrial applications. It can be used to check
electrical distribution systems up to 400 A.
The Model 4000D, available with a either a 14 in or 24 in sensor, has a
measurement range starting at 100mA and can be used on higher-power
industrial installations, as well as electrical utilities for measurements up to
4000 A.
Although they are high-performance instruments, the Digital FlexProbe®Series
are very simple to use: two buttons are all it takes to start the instrument,
deactivate the auto power-o󰀨, HOLD the value on the display or store the
maximum value (MAX HOLD). The values are read directly on the built-in
4000-count display.
They are ergonomically designed for comfortable handheld use even when bulky
gloves are required. The optional articulating, magnetic Multix mounting system
accessory makes it simple to hang on a wall, door, table edge or clip onto a belt.

Digital FlexProbe®Models 400D & 4000D - User Manual 9
2.2 CONTROL FEATURES
1. Flexible sensor
- Model 400D (10 in, 24 in)
- Model 4000D (14 in, 24 in)
2. Sensor opening/closing lever
3. Shielded lead
4. Protective housing
5. LCD display
6. ON/OFF button
7. HOLD button
MAX
(>2s)
HOLD
4000 A
6
0
0
V
C
A
T
I
V
1
0
0
0
V
C
A
T
I
I
I
P
MAX
HOLD
A
Digital
FlexProbe®
MODEL 400 D
TRMS CURRENT METER
1
2
3
5
6
7
4

10 Digital FlexProbe®Models 400D & 4000D - User Manual
On the back of the protective housing is a notch for the attachment of a belt clip
(optional).
With the Multix magnetic mounting accessory (Cat #5000.44), you can position
your Digital FlexProbe®anywhere, leaving both hands free.
The Multix can be used to:
■Carry the Digital FlexProbe®on a belt
■Attach it to a metal surface using the built-in magnet
■Attach it to a door top or the edge of a table
MiniFlex®Shown

Digital FlexProbe®Models 400D & 4000D - User Manual 11
3. OPERATION
3.1 MEASUREMENT PRINCIPLE
The exible sensor is based on the Rogowski coil.
This principle combines:
■Excellent linearity with no saturation e󰀨ect (therefore no heating)
■Light-weight (no magnetic circuit)
3.2 USE
3.2.1 Connection
1. Press the locking clip(s) to open the sensor.
2. Place the sensor around the conductor through which the current to be
measured ows (only one conductor in the sensor), then close the sensor.
3. In order to optimize measurement quality, it is best to center the conductor in
the coil and make the shape of the coil as nearly circular as possible.
4. Press the button to turn the instrument on.
3.2.2 Measurement
Read the measurement on the display. The current is given in ARMS.
If the measurement exceeds the display capacity (4000 A), the device displays
3999, blinking.
If the measurement is too low, the device displays dashes.
A
A
A

12 Digital FlexProbe®Models 400D & 4000D - User Manual
If the edges of the signal are too steep, or its peak factor is too large, the device
displays OL.
3.2.3 Freezing the Measurement
If you want to freeze the display of a measurement, press the HOLD button. The
HOLD symbol is displayed.
The device continues to make measurements, but the display is frozen. To
release it, press the HOLD button again.
3.2.4 Search for Maximum
To search for a maximum, for example a spike lasting at least 100ms, press the
HOLD (MAX > 2s) button for more than two seconds.
The Max symbol will display and the instrument will begin measuring.
The Digital FlexProbe®compares each new measurement to the one displayed. If
the new measurement is greater than the old, it replaces it in the display.
To return to the real-time display mode, press the HOLD (MAX > 2s) button
again.
3.2.5 Auto Power OFF
If there is no activity after 10 minutes, the Digital FlexProbe® turns o󰀨
automatically (unless the MAX function is active) to preserve battery life.
To deactivate the Auto Power OFF feature, press the and HOLD buttons
simultaneously when turning the instrument on.
To reactivate automatic switching o󰀨, switch the device o󰀨, then back on.
A
HOLD
A
M AX
A

Digital FlexProbe®Models 400D & 4000D - User Manual 13
3.2.6 Low Battery
When the battery voltage drops and the remaining battery life of the instrument is
approximately one hour, the symbol blinks on the display.
When the battery voltage is too low to guarantee the accuracy of a measurement,
the symbol lights steadily. The batteries must then be replaced (see § 5.2).
3.2.7 Disconnecting
Turn o󰀨 the device by pressing the button. Press the yellow opening lever to
open the exible sensor. Remove the sensor from the conductor.

14 Digital FlexProbe®Models 400D & 4000D - User Manual
4. SPECIFICATIONS
4.1 REFERENCE CONDITIONS
Quantity of inuence Reference values
Temperature (73.4 ± 5.4) °F (23 ± 3) °C
Relative humidity (45 to 75) % RH
Frequency of the signal
measured (40 to 65) Hz
Peak factor of the signal
measured √ 2
Conductor diameter ≤ 5 mm
Battery voltage (2.8 to 3.2) V
External electric eld none
External DC magnetic eld (earth
eld) < 40 A/m
External AC magnetic eld none
Position of the conductor centered in the measurement coil
Shape of the measurement coil nearly circular
4.2 ELECTRICAL
4.2.1 Model 400D-10 / 400D-24
Display Range 4 A 40 A 400 A
Measurement
Range (0.020 to 3.999) A (4.00 to 39.99) A (40.0 to 399.9) A
Measurement
Range (max) (0.100 to 3.999) A (4.00 to 39.99) A (40.0 to 399.9) A
Resolution 1 mA 10 mA 100 mA
Accuracy ±(2 % + 10 ct) ±(1.5 % + 2 ct) ±(1.5 % + 2 ct)
4.2.2 Model 4000D-14 / 4000D-24
Display Range 40 A 400 A 4000 A
Measurement Range (0.20 to 39.99) A (40.0 to 399.9) A (400 to 3999) A
Measurement Range
(max) (1.00 to 39.99) A (40.0 to 399.9) A (400 to 3999) A
Resolution 10 mA 100 mA 1 A
Accuracy ±(2 % + 10 ct) ±(1.5 % + 2 ct) ±(1.5 % + 2 ct)

Digital FlexProbe®Models 400D & 4000D - User Manual 15
4.3 VARIATIONS IN RANGE OF USE
Quantity of inuence Range of inuence
Battery voltage (1.8 to 2) V
Temperature (32 to 122) °F (0 to 50) °C
Relative humidity (10 to 90) % RH
Frequency response
(10 to 20) Hz
(20 to 30) Hz
(30 to 400) Hz
(400 to 1000) Hz
(1000 to 3000) Hz
Position of the conductor in
the sensor (f<400 Hz)
Any position on the interior perimeter of the
sensor
Adjacent conductor
carrying alternating current Conductor touching the exterior perimeter of the sensor
Peak factor 1.4 to 3.5 limited to 6000 Apeak
Serial mode rejection ratio
in AC (0 to 400) ADC
Common mode rejection,
50/60 Hz (0 to 600) VRMS
Inuence of a 50/60Hz
external magnetic eld (0 to 400) A/m
Accuracy
Typical Maximum
< 1 ct ±(2 % + 1 ct)
± 0.25 % / 10 °C ±( 0.5 % / 10 °C + 2 cts)
0.2 % ± (0.3 % + 2 cts)
See § 4.4
± (5 % + 1 ct)
± (1 % + 1 ct)
± (0.5 % + 1 ct)
± (6 % + 1 ct)
- 3 dB typical
± 0.5 % ± (1.5 % ± 1 ct)
Away from opening: 55 dB
At opening: 55 dB
Away from opening: ≥ 45 dB
At opening: ≥ 45 dB
at 16.66 Hz: ± (2 % + 1 ct)
at 50 Hz: ± (0.5 % + 1 ct)
at 440 Hz: ± (30 % + 1 ct)
± (6 % + 1 ct)
± (3 % + 1 ct)
—
< 1 ct ≥ 50 dB
< 1 ct ≥ 60 dB
Housing: 43 dB
Sensor: 50 dB
Housing: ≥ 30 dB
Sensor: ≥ 40 dB

16 Digital FlexProbe®Models 400D & 4000D - User Manual
4.4 TYPICAL FREQUENCY RESPONSE CURVES
(at 39 AAC)
-50 %
-40 %
-30 %
-20 %
-10 %
0 %
10 %
zH00001zH0001zH001zH01
4.5 POWER SUPPLY
The device can be powered by either:
■Two 1.5 V or super-alkaline AAA batteries
■Two NiMH AAA rechargeable batteries
The nominal operating voltage is between 1.8 V and 3.2 V.
The battery life in continuous operation is:
■70 h with super-alkaline batteries
■50 h with NiMH rechargeable batteries having a capacity of 1200 mA·h
The low battery condition is acknowledged by a blinking symbol on the
display. When lit steadily, the batteries must be replaced (see § 5.2).
4.6 ENVIRONMENTAL
Operating Temperature: (32 to 122) °F (0 to 50) °C
Storage Temperature (without batteries): (-4 to 158) °F (-20 to +70) °C
Operating Relative Humidity: 80 % RH to 122 °F (50 °C)
Storage Relative Humidity: 90 % RH up to 113 °F (45 °C)
The sensor can withstand a temperature of 194 °F (90 °C)
Indoor use / Level of pollution: 2 / Altitude: < 2000 m

Digital FlexProbe®Models 400D & 4000D - User Manual 17
4.7 MECHANICAL
Dimensions: 3.94 x 2.36 x 0.79 in (100 x 60 x 20 mm)
Cable Length: 6 ft (1.83 m)
Sensor Length:
400D-10: 10 in (250 mm)
400D-24: 10 in (610 mm)
4000D-14: 14 in (350 mm)
4000D-24: 24 in (610 mm)
Sensor Diameter:
400D-10: Ø 2.75 in (70 mm)
400D-24: Ø 8 in (190 mm)
4000D-14: Ø 3.94 in (100 mm)
4000D-24: Ø 8 in (190 mm)
Weight: 0.29 lbs (130 g) approx (MiniFlex®)
Index of Protection: IP 40 per IEC 60529
IK 04 per IEC 50102
V0 (per UL 94)
The exible coil is resistant to oils and aliphatic hydrocarbons.
4.8 SAFETY
Electrical safety per IEC 61010-2-032 for type B sensors
Rated 600 V CAT IV
4.9 ELECTROMAGNETIC COMPATIBILITY
Emissions and immunity in an industrial setting compliant with IEC 61326-1 for
portable devices.

18 Digital FlexProbe®Models 400D & 4000D - User Manual
5. MAINTENANCE
NOTE: Use only factory specied replacement parts. AEMC®Instruments
will not be held responsible for any accident, incident, or malfunction
following a repair performed by untrained or unaccredited personnel.
Except for battery replacement, repairs should be completed by the
AEMC®Instruments servcie center or an AEMC®Instruments approved
repair center.
5.1 CLEANING
WARNING: Risk of electric shock! Before cleaning, disconnect all
inputs. Disconnect device from any source of electricity.
■Do not submerge the instrument in water.
■Use a soft cloth lightly moistened with soapy water.
■Wipe with a moist cloth.
■Dry with a dry cloth.
■Do not allow water or other foreign substances into the case.
■Never use alcohol, solvents or hydrocarbons.
5.2 REPLACING THE BATTERIES
WARNING: Risk of electric shock! Disconnect device from any
source of electricity.
The batteries must be replaced when the symbol ashes or remains steady
on the display.
1. Use a screwdriver to unscrew the two closing screws on the back of the
housing.
2. Replace the depleted batteries with either:
(2) 1.5 V or super-alkaline AAA batteries, or
(2) NiMH AAA rechargeable batteries
3. Close the housing; make sure that it is completely and correctly closed.
4. Screw both screws back in.
NOTE: Do not treat spent batteries as ordinary household waste. Take
them to the appropriate collection facility for recycling.

Digital FlexProbe®Models 400D & 4000D - User Manual 19
5.3 REPAIR AND CALIBRATION
To ensure that your instrument meets factory specications, we recommend that
the instrument be sent back to our factory Service Center at one-year intervals
for recalibration or as required by other standards or internal procedures.
For instrument repair and calibration:
You must contact our Service Center for a Customer Service Authorization
Number (CSA#). Send an email to [email protected] requesting a CSA#,
you will be provided a CSA Form and other required paperwork along with the
next steps to complete the request. Then return the instrument along with the
signed CSA Form. This will ensure that when your instrument arrives, it will be
tracked and processed promptly. Please write the CSA# on the outside of the
shipping container. If the instrument is returned for calibration, we need to know
if you want a standard calibration or a calibration traceable to N.I.S.T. (includes
calibration certicate plus recorded calibration data).
Ship To: Chauvin Arnoux®, Inc. d.b.a. AEMC®Instruments
15 Faraday Drive ▪ Dover, NH 03820 USA
Phone: [phone] (Ext. 360) / [phone] (Ext. 360)
Fax: [phone]
E-mail: [email protected]
(Or contact your authorized distributor.)
Contact us for the costs for repair, standard calibration, and calibration traceable
to N.I.S.T.
NOTE: You must obtain a CSA# before returning any instrument.
5.4 TECHNICAL AND SALES ASSISTANCE
f you are experiencing any technical problems or require any assistance with the
proper operation or application of your instrument, please call, e-mail or fax our
technical support team:
Chauvin Arnoux®, Inc. d.b.a. AEMC®Instruments
Phone: [phone] (Ext. 351)
Fax: [phone]
E-mail: [email protected]
www.aemc.com

20 Digital FlexProbe®Models 400D & 4000D - User Manual
5.5 LIMITED WARRANTY
The instrument is warrantied to the owner for a period of two years from the date
of original purchase against defects in manufacture. This limited warranty is given
by AEMC®Instruments, not by the distributor from whom it was purchased. This
warranty is void if the unit has been tampered with, abused, or if the defect is
related to service not performed by AEMC®Instruments.
Full warranty coverage and product registration is available on our
website at www.aemc.com/warranty.html.
Please print the online Warranty Coverage Information for your
records.
What AEMC®Instruments will do:
If a malfunction occurs within the warranty period, you may return the instrument
to us for repair, provided we have your warranty registration information on le or
a proof of purchase. AEMC®Instruments will repair or replace the faulty material
at our discretion.
REGISTER ONLINE AT: www.aemc.com/warranty.html
5.5.1 Warranty Repairs
What you must do to return an Instrument for Warranty Repair:
First, send an email to [email protected] requesting a Customer Service
Authorization Number (CSA#) from our Service Department. You will be provided
a CSA Form and other required paperwork along with the next steps to complete
the request. Then return the instrument along with the signed CSA Form. Please
write the CSA# on the outside of the shipping container. Return the instrument,
postage or shipment pre-paid to:
Chauvin Arnoux®, Inc. d.b.a. AEMC®Instruments
15 Faraday Drive, Dover, NH 03820 USA
Phone: [phone] (Ext. 360)
[phone] (Ext. 360)
Fax: [phone]
E-mail: [email protected]
Caution: To protect yourself against in-transit loss, we recommend
that you insure your returned material.
NOTE: You must obtain a CSA# before returning any instrument.